Vulnerability in Powerdns Recursor
CVE-2020-12244
An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.024 (83.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: -0.001
Affected products
- Powerdns Recursor
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 31, 32
- openSUSE Backports Sle — versions 15.0
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
References
- doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html (Vendor Advisory)
- www.openwall.com/lists/oss-security/2020/05/19/3 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2020/dsa-4691 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-12244?
- CVE-2020-12244 is a high-severity vulnerability in Powerdns Recursor, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2020-05-19.
- How severe is CVE-2020-12244?
- High severity. CVSS v3 base score is 7.5 out of 10.